Invertible magnetic stand for test tubes



FIG. 1 is an upper perspective view of the invertible magnetic stand for test tubes showing our design;

FIG. 2 is an exploded perspective view of the stand, showing a magnetic core for creating a magnetic field for test tubes held in a rack portion of the stand;

FIG. 3 is an exploded side elevation view thereof;

FIG. 4 is an exploded opposite side elevation view thereof;

FIG. 5 is a top plan view thereof;

FIG. 6 is a bottom plan view thereof;

FIG. 7 is an exploded end elevation view thereof;

FIG. 8 is an exploded opposite end elevation view thereof; and,

FIG. 9 is another perspective view of invertible magnetic stand for test tubes, showing an alternate, inverted configuration of the rack portion of the stand for use with test tubes of different sizes. 

CLAIM The ornamental design for an invertible magnetic stand for test tubes, as shown and described. 